Ball-bearing for carpet-sweepers.



No. 881,663. PATENTED MAR.10,1908.

' F. c. MASON.

BALL BEARINGPOR CARPET SWEEPERS.

APPLICATION FILED FEB. 19. 1907.

l object is to provide easy. running, dust proof n ears PATENT OFFICE.

FRANCIS O. MASON, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO BISSELL CARPETSWEEPER COMPANY, OF GRAND RAPIDS, MICHIGAN, A CORPORATION OF MICHIGAN.

BALL-BEARING FOR CARPET-SWEEPERS.

Specification of Letters Patent.

Patented l'tlarch 10, 1908 To all whom it may concern.

Be it known that I, FRANCIS C. MAsoN, a citizen of theUnited States ofAmerica, residing at Grand Ra ids, in the county of Kent and State of l\ichigan, have invented certain new and useful Improvements inBall-Bearings for Car et-Sweepers; and I do hereby declare the fol owingto be afull, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to improvements in carpet sweepers and moreparticularly to the bearings of the brush shaft therein, and itsbearings for the same; to prevent strings and the like from winding intothe bearings of the same; and to rovide the device with various new anduse l features hereinafter more I fully described and particularlypointed out F121; and 5 respectively.

in the claims.

My invention resides'in the combination and arrangement with the brushshaft of a carpet sweeper, and the flexible end guards of the same of acup-shaped guard, a shouldered pin secured to the guard bar, togetherwith a cup, a cone and balls in'the 'c'up together with an annularretaining cap attached to the cup and when so assembled inserted: in therespective ends of the brush shaft to o-act with said pins and theflexible bars, whereby an easy running and durable,

Figure 1 is an end elevation of a carpetsweeper provided with mydevicewith parts omitted. Fig. 2, a plan viewof one end of .the same;Fig. 3, an enlarged detail of the ends of the brush shaft partially insection through the axis thereof and Figs. 4, 5, 6, and 7 details of thevarious Like numbers refer to like parts in an of I the figures.

. [1 represents a carpet sweeper case; 2 the horizontally flexible endguards of the same,

in which are inserted pins 3 projecting inward horizontally opposite theaxis of the brush bearingls parts 11, 10, 12 v carpet swee er,comprising a cup,a circular shaft, said pins having shoulders 14 neartheir inner ends to engage the outer face of i a cup-shaped guard 5secured to the bars 2 by the pins 3 and non-rotative thereon.

7 are the su porting and driving wheels which engage t e pulleys 4 androtate the brush shaft 9. Cups 11 are inserted in the respective ends ofthe brush shaft, which cups are provided with caps 10 provided withmarginal flanges enfiagin the margins of the cups and thus attac ed tereto to retain the contents thereof and each cap is rovided with anaxial opening through w ch the pin 3 extends. These cups and caps withthe cones and the circular series of balls 13 are permanently assembledand in this condition can be conveniently treated as a uni tarystructure and inserted in the ends of the brush shaft after. which thebrush shaft is placed in position by s ringing the guard are 2 outwardsuiiicient y to, permit the pin 'to enter the ca and cone. Theflexibility of the bars 2 ten s to press the ins inward and thus crowdthe cones towar the bottom of the cups, which prevents all looseness andrattling, The brush shaft is supported and freely rotative u on theballs an the guard 5 eflectually exc udes dust and grit from the andalso prevents winding of strings or the he around the pins.

What I claim isi 1. An improved ball bearing for the brush shaft of acarpet swee er, comprising a cup, a circular series of ba] 51, in thecup, a retaining cap having a flange enga ing the periphery of the cupand attacherl thereto and a central 0 ening for the pin, a cone loose inthe cup and retained therein by the ca a pin extending through theopening in he cap and engaging the cone, and means for supporting thein.

2. A ball earing for the brush shaft of a series of ba s in the cu acone ose in the cup and engaging the alls and also having an axialopening, a retainin cap having a; flange engaging the rim 01' t e cupand a ttached thereto, and also having a central ing through saidopening and engaging the opening of the cone, opposing flexible supcone.porting bars, and pins supported by the bars 3'. An improved ballbearing for the brush and inserted in the openings at the caps and shaftof a car et sweeper, comprising a shaft, cones, and also havingshoulders engaging 15 5 oupsinserte in the respective ends of the theouter surfaces of the cones.

shaft, circular series of balls in each cup, a In testimony whereof I.allix my signature cone loose in each cup and engaging the balls inpresence of two witnesses. and also having an axial opening, a cap onFRANCIS C MASON. each cu and having a flange engaging the Witnesses: 10.rim of t e cup and attached thereto and also LU'rnEn V. Mom/170x, havinga central opening in line with the l GEORGIANA (limos.

